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Bosler, WY planting calendar

When to plant vegetables in Bosler, WY (USDA hardiness zone 4a). Typical last spring frost around May 22, 2026 11 days year to year), first fall frost around Sep 24, 202611 days).

Playing it safe? Spring frost holds off until about Jun 5, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

Or get a printable Bosler calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Bosler, WY’s first frost (~Sep 24, 2026) — fastest first.

Month by month in Bosler, WY

February

March

April

May

June

July

Understand your frost dates

More Wyoming planting calendars

ZIP codes in Bosler

82051

Frost dates are NOAA 1991–2020 climate normals for a representative location in Bosler, WY (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.